cover image
Mistral AI

Senior Software Engineer, JS

Hybrid

London, United kingdom

Full Time

09-04-2025

Share this job:
Expired

Job Specifications

About Mistral

At Mistral AI, we believe in the power of AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life.

We democratize AI through high-performance, optimized, open-source and cutting-edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise needs, whether on-premises or in cloud environments. Our offerings include le Chat, the AI assistant for life and work.

We are a dynamic, collaborative team passionate about AI and its potential to transform society.

Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between France, USA, UK, Germany and Singapore. We are creative, low-ego and team-spirited.

Join us to be part of a pioneering company shaping the future of AI. Together, we can make a meaningful impact. See more about our culture on https://mistral.ai/careers.

Role summary

We are seeking a passionate and skilled Senior Full Stack Engineer to join our growing team. In this role, you will have the unique opportunity to work on our complete range of products, contributing to its development and enhancement. Your work will directly impact the user experience, making it more engaging, efficient, and intuitive.

What you will do

Full Stack Development: Design, develop, and maintain scalable and robust features, ensuring seamless integration between front-end and back-end systems using a modern and robust stack
User-Centric Design: Prioritize user experience and ensure that our products meet the needs and expectations of our user base
Code Quality: Write clean, maintainable, and well-documented code, and participate in code reviews to uphold our high standards of quality
Collaboration: Work closely with cross-functional teams, including product managers, designers, and other engineers, to deliver high-quality software solutions
Problem-Solving: Tackle complex technical challenges and develop elegant, efficient solutions that improve performance and reliability
Innovation: Stay up-to-date with the latest technologies and trends in AI and software development, and apply them to enhance our products

About You

Proficient in Node.js, Typescript and React.js
Comfortable shipping products end to end
Strong problem-solving abilities and attention to detail
Excellent communication
Low Ego and team spirit mindset
Autonomous and self-starter

Now it would be ideal if you have experience with

AI Products, particularly with LLMs
Distributed Systems
Monitoring/Alerting
Python
UX development (Figma)

Remote

For this role, we do not ask you to be based from a specific location outside of the countries listed in this job posting. In exchange, we ask you to be available for a monthly visit to one of our offices.

If based in France , Germany or Spain , we ask you to be able to come to our Paris office 3 days per month.

If based in the UK , we ask you to be able to come to our London office 3 days per month.

Mistral AI will pay 100% for inter country travelling and 50% for intra country travelling.

Onboarding

We ask all new hires to be able to come to Paris for the first month when they start.

Hiring Process

Recruiter Screening (45min)
Hiring Manager Interview (30min)
Live-Coding interview (60min)
System Design Interview (60min)
Culture-fit discussion (30min)

About the Company

Frontier AI. In your hands. We believe in a future where AI is abundant and accessible. We aspire to empower the world to build with—and benefit from—the most significant technology of our time. Join us: https://jobs.lever.co/mistral/ Know more